Node.js
Learn Node.js from the ground up — event loop, async I/O, modules, npm, Express, streams, and production-ready backend skills.
What you'll learn
- Explain how the Node.js event loop, V8, and libuv work together
- Write idiomatic asynchronous code using promises and async/await
- Use the CommonJS and ES module systems and understand resolution rules
- Manage dependencies and scripts with npm and package.json
- Build HTTP servers and REST APIs using core modules and Express
- Work with streams and buffers to handle large data efficiently
- Handle errors, debug, and profile Node.js applications in production
- Apply basic security and deployment practices for Node.js services
Curriculum
- what is nodejs
- nodejs vs browser javascript
- use cases of nodejs
- installing nodejs
- node cli basics
- running javascript files
- nodemon
- environment setup
- npm basics
- package.json
- installing dependencies
- npm scripts
About this course
Node.js powers a huge slice of the modern web — from APIs and microservices to real-time apps and serverless functions. This course teaches you Node.js the way it's actually used in production: starting from the runtime and event loop, and building up to writing scalable, asynchronous backend services.
What you'll learn
- How the Node.js runtime, V8, and the event loop actually work
- The module system: CommonJS, ES modules, and resolution rules
- Asynchronous programming with callbacks, promises, and async/await
- Working with npm, package.json, and dependency management
- Core modules: fs, path, http, events, stream, buffer
- Building HTTP servers and REST APIs with Express
- Streams, buffers, and handling large payloads efficiently
- Error handling, debugging, and performance tuning
- Testing, security basics, and deploying Node.js apps
How it works
Each topic is reinforced with carefully curated multiple-choice questions that test how Node.js really behaves — including the quirks of the event loop, the difference between process.nextTick and setImmediate, and the subtle gotchas of async code. You learn by reasoning about real code, not by passively watching videos.
Who this is for
Frontend developers moving into backend work, full-stack engineers leveling up their Node.js skills, computer science students learning server-side JavaScript, and anyone preparing for Node.js or full-stack interviews.
What learners say
Best Node.js refresher I've found. The questions on process.nextTick vs setImmediate and microtasks vs macrotasks are gold for interview prep.
Used this to prep for a backend interview after years of frontend work. The Express and async/await sections were exactly what I needed.
The event loop questions alone were worth it. I'd been writing Node.js for two years and still had a fuzzy mental model — this course finally made it click.
Frequently asked questions
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